Digital BW, The Print

Hello keith,

>On your site, in Article 9 about printing with the R2400, in the
>workflow section, you mention that you resize your file to 4" but 
>you do NOT resample.  Why not resample?  

Because resampling changes the size of the file.  I just want to make
a small print from the existing file size.


>I noticed that when you don't, the resolution goes up and the PPI 
>doesn't change.  

I'm not sure what you mean here.  The Resolution, as shown in the
Image Size window, _is_ PPI.  If the print size is made smaller, the
resolution (PPI) goes up and the file size remains unchanged.


>If the output resolution is what determines the DPI of the print, 
>wouldn't that change the way the print looks by laying down more 
>ink?

I'm a bit confused by your terminology, but I think I understand what
you're getting at.  First, I have read a variety of explanations on
what happens when we do this.  My understanding is that PS does do the
resampling in a temporary file before sending to the printer.  And of
course it decides what algorithm to use.  When _we_ resample we get to
choose the algorithm.  How important that is under various conditions
is another subject, but I consider it irrelevent for these small
initial proof prints.

When it comes time to make final prints of varying sizes, the question
arises as to whether we should make a 300dpi (resampled) file for each
size print we wish to make.  I think questions like this should be
answered by each user's own experiments.  There have been endless
debates on how much the print quality is affected by this.  I
recommend making several sizes of a file, using various resampling
algorithms (always leaving the master file intact), printing them at
various sizes, and determining for yourself what is the best approach.
 That's the only way you'll be fully satisfied.  Otherwise you'll just
be believing one person's theory or another.

For 4" initial proofs I don't think it matters.  I hope this answers
your questions.  


Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm